libstdc++-v3/testsuite/23_containers/multiset/operations/1.cc

   1 // 2006-11-25  Paolo Carlini  <pcarlini@suse.de>
   2
   3 // Copyright (C) 2006-2025 Free Software Foundation, Inc.
   4 //
   5 // This file is part of the GNU ISO C++ Library.  This library is free
   6 // software; you can redistribute it and/or modify it under the
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 3, or (at your option)
   9 // any later version.
  10 //
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING3.  If not see
  18 // <http://www.gnu.org/licenses/>.
  19 //
  20
  21 #include <set>
  22 #include <testsuite_hooks.h>
  23
  24 // A few tests for equal_range, in the occasion of libstdc++/29385.
  25 void test01()
  26 {
  27   using namespace std;
  28
  29   multiset<int> ms0;
  30   typedef multiset<int>::iterator iterator;
  31   typedef multiset<int>::const_iterator const_iterator;
  32   pair<iterator, iterator> pp0;
  33
  34   pp0 = ms0.equal_range(1);
  35   VERIFY( ms0.count(1) == 0 );
  36   VERIFY( pp0.first == ms0.end() );
  37   VERIFY( pp0.second == ms0.end() );
  38
  39   iterator iter0 = ms0.insert(1);
  40   iterator iter1 = ms0.insert(2);
  41   iterator iter2 = ms0.insert(3);
  42
  43   pp0 = ms0.equal_range(2);
  44   VERIFY( ms0.count(2) == 1 );
  45   VERIFY( *pp0.first == 2 );
  46   VERIFY( *pp0.second == 3 );
  47   VERIFY( pp0.first == iter1 );
  48   VERIFY( --pp0.first == iter0 );
  49   VERIFY( pp0.second == iter2 );
  50
  51   ms0.insert(3);
  52   iterator iter3 = ms0.insert(3);
  53   iterator iter4 = ms0.insert(4);
  54
  55   pp0 = ms0.equal_range(3);
  56   VERIFY( ms0.count(3) == 3 );
  57   VERIFY( *pp0.first == 3 );
  58   VERIFY( *pp0.second == 4 );
  59   VERIFY( pp0.first == iter2 );
  60   VERIFY( --pp0.first == iter1 );
  61   VERIFY( pp0.second == iter4 );
  62
  63   iterator iter5 = ms0.insert(0);
  64   ms0.insert(1);
  65   ms0.insert(1);
  66   ms0.insert(1);
  67
  68   pp0 = ms0.equal_range(1);
  69   VERIFY( ms0.count(1) == 4 );
  70   VERIFY( *pp0.first == 1 );
  71   VERIFY( *pp0.second == 2 );
  72   VERIFY( pp0.first == iter0 );
  73   VERIFY( --pp0.first == iter5 );
  74   VERIFY( pp0.second == iter1 );
  75
  76   iterator iter6 = ms0.insert(5);
  77   ms0.insert(5);
  78   ms0.insert(5);
  79
  80   pp0 = ms0.equal_range(5);
  81   VERIFY( ms0.count(5) == 3 );
  82   VERIFY( *pp0.first == 5 );
  83   VERIFY( pp0.first == iter6 );
  84   VERIFY( --pp0.first == iter4 );
  85   VERIFY( pp0.second == ms0.end() );
  86
  87   ms0.insert(4);
  88   ms0.insert(4);
  89   ms0.insert(4);
  90
  91   pp0 = ms0.equal_range(4);
  92   VERIFY( ms0.count(4) == 4 );
  93   VERIFY( *pp0.first == 4 );
  94   VERIFY( *pp0.second == 5 );
  95   VERIFY( pp0.first == iter4 );
  96   VERIFY( --pp0.first == iter3 );
  97   VERIFY( pp0.second == iter6 );
  98
  99   ms0.insert(0);
 100   iterator iter7 = ms0.insert(0);
 101   ms0.insert(1);
 102
 103   pp0 = ms0.equal_range(0);
 104   VERIFY( ms0.count(0) == 3 );
 105   VERIFY( *pp0.first == 0 );
 106   VERIFY( *pp0.second == 1 );
 107   VERIFY( pp0.first == iter5 );
 108   VERIFY( pp0.first == ms0.begin() );
 109   VERIFY( pp0.second == iter0 );
 110
 111   const multiset<int>& ms1 = ms0;
 112   pair<const_iterator, const_iterator> pp1 = ms1.equal_range(1);
 113   VERIFY( ms1.count(1) == 5 );
 114   VERIFY( *pp1.first == 1 );
 115   VERIFY( *pp1.second == 2 );
 116   VERIFY( pp1.first == iter0 );
 117   VERIFY( --pp1.first == iter7 );
 118   VERIFY( pp1.second == iter1 );
 119 }
 120
 121 int
 122 main()
 123 {
 124   test01();
 125   return 0;
 126 }